World Book Day is a worldwide campaign to promote the benefits of reading for people of all ages in more than 100 countries.

Last year was the first time a Welsh-language book was among the 14 titles on sale for just £1 as part of the celebration.

This year, Na, Nel! Un tro... by Aberystwyth-based author Meleri Wyn James and Darllen gyda Cyw by Anni Llyn will be included and are available to those with sight loss.

RNIB Cymru transcription manager Emma Jones said: "The Braille, large print and audio versions make sure that blind and partially-sighted children can discover these stories and share in the excitement this World Book Day."

First published officially in 1996, Welsh Braille uses the same general rules as English with regard to composition and punctuation.

However, it includes symbols for common Welsh letter combinations such as ll, dd, ff and rh, as well as the most commonly-used words.

Various celebrations will be taking place to mark World Book Day with children across the country dressing up as their favourite characters.

One of the largest will be The Biggest Book Show at The Hafren in Newtown, Powys, with authors including Eloise Williams, Claire Fayers, PG Bell and Max Low.

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The first Welsh braille book was published in the early 1900s